Weathering and Soils Quiz

What is the primary difference between physical and chemical weathering?

• Chemical weathering breaks rocks into smaller pieces.

• Chemical weathering does not involve any chemical reactions.

• Physical weathering changes the chemical composition of rocks.

• Physical weathering involves breaking rocks without changing their composition.

Which soil horizon is primarily composed of organic material?

• O horizon

• A horizon

• B horizon

• C horizon

What is the R horizon in soil layers?

• Organic matter

• Parent material

• Subsoil

• Topsoil

Approximately how long does it take for one inch of soil to form through weathering?

• 10,000 years

• 10 years

• 100 years

• 1,000 years

What can the burial of structures like the pyramids at Chichen Itzá tell us about weathering?

• Weathering can lead to rapid soil formation in a few years.

• Weathering has no impact on soil formation.

• Weathering only affects the surface of the Earth.

• Weathering processes can take hundreds of thousands of years.